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PM / OPP: Update bindings to make opp-hz a 64 bit value 

With a 32 bit value, the maximum frequency that the bindings can
support is ~ 4 GHz. And that might fall short of what newer systems may
have.

Allow opp-hz to be a 64 bit big-endian value.

Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
hifive-unleashed-5.1
Viresh Kumar 2015-07-29 16:22:56 +05:30 committed by Rafael J. Wysocki
parent 74d33293e4
commit ba4539ffc1
1 changed files with 20 additions and 20 deletions
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40
Documentation/devicetree/bindings/power/opp.txt
View File

@ -88,7 +88,7 @@ This defines voltage-current-frequency combinations along with other related
properties.
Required properties:
- opp-hz: Frequency in Hz
- opp-hz: Frequency in Hz, expressed as a 64-bit big-endian integer.
Optional properties:
- opp-microvolt: voltage in micro Volts.
@ -158,20 +158,20 @@ Example 1: Single cluster Dual-core ARM cortex A9, switch DVFS states together.
opp-shared;
opp00 {
opp-hz = <1000000000>;
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <970000 975000 985000>;
opp-microamp = <70000>;
clock-latency-ns = <300000>;
opp-suspend;
};
opp01 {
opp-hz = <1100000000>;
opp-hz = /bits/ 64 <1100000000>;
opp-microvolt = <980000 1000000 1010000>;
opp-microamp = <80000>;
clock-latency-ns = <310000>;
};
opp02 {
opp-hz = <1200000000>;
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt = <1025000>;
clock-latency-ns = <290000>;
turbo-mode;
@ -237,20 +237,20 @@ independently.
*/
opp00 {
opp-hz = <1000000000>;
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <970000 975000 985000>;
opp-microamp = <70000>;
clock-latency-ns = <300000>;
opp-suspend;
};
opp01 {
opp-hz = <1100000000>;
opp-hz = /bits/ 64 <1100000000>;
opp-microvolt = <980000 1000000 1010000>;
opp-microamp = <80000>;
clock-latency-ns = <310000>;
};
opp02 {
opp-hz = <1200000000>;
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt = <1025000>;
opp-microamp = <90000;
lock-latency-ns = <290000>;
@ -313,20 +313,20 @@ DVFS state together.
opp-shared;
opp00 {
opp-hz = <1000000000>;
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <970000 975000 985000>;
opp-microamp = <70000>;
clock-latency-ns = <300000>;
opp-suspend;
};
opp01 {
opp-hz = <1100000000>;
opp-hz = /bits/ 64 <1100000000>;
opp-microvolt = <980000 1000000 1010000>;
opp-microamp = <80000>;
clock-latency-ns = <310000>;
};
opp02 {
opp-hz = <1200000000>;
opp-hz = /bits/ 64 <1200000000>;
opp-microvolt = <1025000>;
opp-microamp = <90000>;
clock-latency-ns = <290000>;
@ -339,20 +339,20 @@ DVFS state together.
opp-shared;
opp10 {
opp-hz = <1300000000>;
opp-hz = /bits/ 64 <1300000000>;
opp-microvolt = <1045000 1050000 1055000>;
opp-microamp = <95000>;
clock-latency-ns = <400000>;
opp-suspend;
};
opp11 {
opp-hz = <1400000000>;
opp-hz = /bits/ 64 <1400000000>;
opp-microvolt = <1075000>;
opp-microamp = <100000>;
clock-latency-ns = <400000>;
};
opp12 {
opp-hz = <1500000000>;
opp-hz = /bits/ 64 <1500000000>;
opp-microvolt = <1010000 1100000 1110000>;
opp-microamp = <95000>;
clock-latency-ns = <400000>;
@ -379,7 +379,7 @@ Example 4: Handling multiple regulators
opp-shared;
opp00 {
opp-hz = <1000000000>;
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <970000>, /* Supply 0 */
<960000>, /* Supply 1 */
<960000>; /* Supply 2 */
@ -392,7 +392,7 @@ Example 4: Handling multiple regulators
/* OR */
opp00 {
opp-hz = <1000000000>;
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <970000 975000 985000>, /* Supply 0 */
<960000 965000 975000>, /* Supply 1 */
<960000 965000 975000>; /* Supply 2 */
@ -405,7 +405,7 @@ Example 4: Handling multiple regulators
/* OR */
opp00 {
opp-hz = <1000000000>;
opp-hz = /bits/ 64 <1000000000>;
opp-microvolt = <970000 975000 985000>, /* Supply 0 */
<960000 965000 975000>, /* Supply 1 */
<960000 965000 975000>; /* Supply 2 */
@ -437,12 +437,12 @@ Example 5: Multiple OPP tables
opp-shared;
opp00 {
opp-hz = <600000000>;
opp-hz = /bits/ 64 <600000000>;
...
};
opp01 {
opp-hz = <800000000>;
opp-hz = /bits/ 64 <800000000>;
...
};
};
@ -453,12 +453,12 @@ Example 5: Multiple OPP tables
opp-shared;
opp10 {
opp-hz = <1000000000>;
opp-hz = /bits/ 64 <1000000000>;
...
};
opp11 {
opp-hz = <1100000000>;
opp-hz = /bits/ 64 <1100000000>;
...
};
};